20401362 has 32 divisors (see below), whose sum is σ = 45489600. Its totient is φ = 6777504.

The previous prime is 20401361. The next prime is 20401397. The reversal of 20401362 is 26310402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20401361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24814 + ... + 25622.

It is an arithmetic number, because the mean of its divisors is an integer number (1421550).

Almost surely, 2^20401362 is an apocalyptic number.

20401362 is an abundant number, since it is smaller than the sum of its proper divisors (25088238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20401362 is a wasteful number, since it uses less digits than its factorization.

20401362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287 (or 1281 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 20401362 is about 4516.7866896722. The cubic root of 20401362 is about 273.2455223911.

Adding to 20401362 its reverse (26310402), we get a palindrome (46711764).

The spelling of 20401362 in words is "twenty million, four hundred one thousand, three hundred sixty-two".